CN104572956A - System and method for confirming POI information effectiveness - Google Patents

Abstract

The present invention relates to a system and method for determining the validity of POI information based on address data in the network. The method includes: using the address data in the network to obtain a plurality of related POI information corresponding to the same POI name; the number of occurrences in the address data in the network; and determine valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network. The present invention clusters the same POI names with different sayings into one category through keyword clustering, uses the Internet "voting" mechanism to select the best POI name for multiple POI names corresponding to the same longitude and latitude, and uses the "voting" on the Internet to select the best POI name. "The mechanism selects credible POI names, enabling users to quickly and accurately search for credible POI information corresponding to POI addresses, improving user experience.

Description

System and method for determining validity of POI information

technical field

The invention relates to the technical field of electronic maps, in particular to a system for determining the validity of POI information based on address data in a network and a method for determining the validity of POI information based on address data in a network.

Background technique

A point of interest (POI) is a geographical information point marked in an electronic map, and usually includes information such as POI identification, POI name, POI type, longitude, and latitude. POI can be marked on the map with latitude and longitude information, which can be used to find and calculate navigation landmarks or buildings, such as shopping malls, parking lots, schools, hospitals, hotels, restaurants, supermarkets, parks, tourist attractions, etc.

More and more users are querying POIs in electronic maps, and the POI data stored in the database provides data support for POI queries. At present, updating the POI data in the database is mainly through actual data collection, updating the POI data stored in the database according to the data obtained by actual collection, or obtaining POI data from various life information websites on the Internet, as long as The acquired data includes the name and address of the POI, so the piece of data can be determined as a piece of POI data. Due to the characteristics of POI data acquisition and update methods, it is inevitable that there are various POI data on the Internet. Therefore, there may be repetitive data in the POI data obtained from different source websites, that is, multiple pieces of POI data actually describe the same POI, and their actual POI longitude and latitude are the same, but the POI name and POI address are described in different ways. different. Repeated POI data makes it impossible for users to quickly and accurately search for the POI name corresponding to the POI address of the same POI geographic location (longitude and latitude), which affects user experience.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a system for determining the validity of POI information based on address data in the network and correspondingly determining POI information based on address data in the network to overcome the above problems or at least partially solve or alleviate the above problems effective method.

According to one aspect of the present invention, a system for determining the validity of POI information based on address data in a network is provided, the system comprising:

A POI information obtaining unit is used to obtain a plurality of related POI information corresponding to the same POI name based on the address data in the network based on the search engine;

a statistical unit, configured to count the number of occurrences of the POI information in the address data in the network;

A POI information determining unit, configured to determine valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network.

Preferably, the plurality of related POI information is information corresponding to at least one preset attribute of POIs.

Preferably, the preset attribute is latitude and longitude, address, building name or the name of the included unit.

Preferably, the statistical unit further includes:

A POI information source acquisition module, configured to acquire the source of the POI information;

POI information source reliability judging module, used to judge whether the source is a reliable source;

A statistical module, configured to count the number of occurrences of the POI information in the address data in the network if the source is a reliable source; otherwise, do not count.

Preferably, the POI information determining unit further includes:

a judging subunit, configured to judge whether the number of occurrences of the POI information in the address data in the network is higher than a predetermined threshold;

The information point information determining subunit is configured to determine that the acquired POI information is valid if the judging subunit judges yes.

Preferably, the reliable source is a source with a predetermined credibility.

Preferably, the source is a website or a webpage.

According to another aspect of the present invention, a method for determining the validity of POI information based on address data in a network is provided, comprising:

Use the address data in the network to obtain multiple related POI information corresponding to the same POI name;

counting the number of occurrences of the POI information in the address data in the network;

Valid POI information corresponding to the same POI name is determined according to the number of occurrences of the POI information in address data in the network.

Preferably, the plurality of related POI information is information corresponding to at least one preset attribute of POIs.

Preferably, the preset attribute is latitude and longitude, address, building name or the name of the included unit.

Preferably, the step: counting the number of occurrences of the POI information in the address data in the network, further comprising:

The source from which the POI information was obtained;

Judging whether the source is a reliable source, if so, counting the number of occurrences of the POI information in the address data in the network, otherwise not counting.

Preferably, the step: determining valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network, further comprising:

judging whether the number of occurrences of the POI information in the address data in the network is higher than a predetermined threshold;

If yes, it is determined that the POI information is valid.

Preferably, the reliable source is a source with a predetermined credibility.

Preferably, the source is a website or a web page.

The beneficial effects of the present invention are:

The present invention uses the address data in the network to obtain a plurality of related POI information corresponding to the same POI name, and determines the effective POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network, so that the user can Quickly and accurately search for one or more POI names corresponding to POI addresses of the same latitude and longitude, and then use the online voting mechanism to filter one or more POI names according to the source of information and the frequency of their appearance on the Internet. The POI name with high reliability is used as the POI name corresponding to the current POI address to improve the validity of POI information.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

FIG. 1 schematically shows a block diagram of a system for determining the validity of POI information based on address data in a network according to an embodiment of the present invention;

Fig. 2 schematically shows a block diagram of a statistical unit in a system for determining validity of POI information based on address data in a network according to another embodiment of the present invention;

FIG. 3 schematically shows a block diagram of a POI information determination unit in a system for determining the validity of POI information based on address data in a network according to another embodiment of the present invention;

FIG. 4 schematically shows a flowchart of a method for determining the validity of POI information based on address data in a network according to an embodiment of the present invention;

FIG. 5 schematically shows a subdivided flow chart of step S12 of the method for determining the validity of POI information based on address data in the network according to another embodiment of the present invention; and

Fig. 6 schematically shows a subdivided flow chart of step S13 of the method for determining the validity of POI information based on address data in the network according to another embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and/or groups thereof.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be used in an idealized or overly formal sense unless specifically defined to explain.

Fig. 1 schematically shows a block diagram of a system for determining validity of POI information based on address data in a network according to an embodiment of the present invention.

Referring to Fig. 1, the system for determining the validity of POI information based on the address data in the network of the embodiment of the present invention includes:

POI information obtaining unit 11, for utilizing the address data in the network to obtain multiple related POI information corresponding to the same POI name based on the search engine;

In the embodiment of the present invention, the plurality of related POI information is information corresponding to at least one preset attribute of the POI. Further, the preset attribute is latitude and longitude, address, building name or included unit name.

A statistical unit 12, configured to count the number of occurrences of the POI information in the address data in the network;

The POI information determining unit 13 is configured to determine valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network.

In the embodiment of the present invention, the address data is captured from the network data based on the search engine, and the address data includes the name field and address information, and the map address data mined from the Internet based on the search engine, such as name: Evergrande Real Estate Group Kunming Company; address: 14th Floor, Office Building, Building A, Beichen Fortune Center, Panlong District, Kunming City, where "Evergrande Real Estate Group Kunming Company" is the name of the POI, and "14th Floor, Office Building A, Beichen Fortune Center, Panlong District, Kunming City" is the address of the POI , The longitude and latitude information of the address can be obtained by analyzing the longitude and latitude of the address. For example, the longitude and latitude of the address "14th Floor, Office Building, Building A, Beichen Fortune Center, Panlong District, Kunming City" is: East Longitude: 102.733445 North Latitude: 25.08108. In addition, it is necessary to count the number of times POI information appears on the Internet and the source of the record.

Therefore, the format of the POI information from different information sources corresponding to the address data mined from the Internet is shown in Table 1, specifically as follows:

Table 1 Format table of POI information from different information sources

It can be seen from Table 1 that in the POI data obtained from different source websites in the same geographical location (same latitude and longitude), there may be repetitive data, that is, there may be multiple POI names at the same address (latitude and longitude), such as the same POI name in Table 1. There are multiple companies with the same longitude and latitude, and their actual POIs have the same longitude and latitude, but the POI name and POI address are described in different ways; it can also be seen that the same POI name may have many different sayings, such as "Baoshan Mingzhi Automobile Sales Co., Ltd. "Company" and "Baoshan Mingzhi Automobile Sales Service Co., Ltd.", the repetitive POI data makes it impossible for users to quickly and accurately search for the POI name corresponding to the POI address of the same POI geographic location (latitude and longitude).

In the embodiment of the present invention, multiple related POI information corresponding to the same POI name is obtained based on the search engine using address data in the network, wherein the multiple related POI information is information corresponding to at least one preset attribute of the POI, and the preset attribute For the latitude and longitude, address, building name or unit name included, determine valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network.

Further, the step of determining valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network includes: information corresponding to the same address information according to the preset attributes of the relevant POI information The name field is clustered according to keywords, and the frequency of occurrence of the name field in each category is counted after clustering, as the second frequency, and the POI name of the category corresponding to the address information is determined according to the second frequency, and according to the second frequency Frequency determines the POI name corresponding to the address information in this category, and uses the Internet "voting" mechanism to select credible and valid POI information with the same POI name.

Furthermore, one or more keywords are determined based on the name fields, the keywords corresponding to the same address information are clustered, and the clustered name fields are determined according to the clustered keywords.

Furthermore, word segmentation is performed on the name in the name field to generate word segmentation, and keywords in the name field are obtained according to the word segmentation.

Furthermore, the frequency of occurrence of each participle corresponding to the same address information is counted as the first frequency, and the keywords of the name field are generated according to the first frequency. The participle of is used as the keyword of the name field.

Furthermore, in the present invention, the name field with the second highest frequency in each class can be used as the class identification name, and each class identification name can be used as the POI name corresponding to the address information; or, the The name field with the second highest frequency is used as the class identification name, and the class identification name that appears most frequently on the network is used as the POI name corresponding to the address information.

Among them, the name of the POI information in the mined address data is segmented, and the number of occurrences of each word after the word segmentation is counted. The least frequency of occurrence in the same POI name means the largest amount of information, and it is the word that is not a place name. It is the keyword of the POI name. For example, the POI name in the relevant POI information corresponding to the address data appearing in Table 1 is as shown in Table 2 (word frequency is calculated based on about 90 million POI names), and in Table 2 The second column is the obtained keywords, as follows:

Table 2 Data table after word segmentation of POI name

Clustering based on keywords: the POI names corresponding to the same keyword are recorded as the same category, and the above POI names can be classified into 5 categories, that is to say, there are 5 different POI names on this POI address, which are:

A: Baoshan Boxinyuan Automobile Trading Co., Ltd.;

B: Yunnan Province Lancangjiang Beer Group Baoshan Co., Ltd. Yunnan Province Lancangjiang Beer Group Baoshan Co., Ltd. (marked on the map);

C: Baoshan Mingzhi Automobile Sales Co., Ltd. Baoshan Mingzhi Automobile Sales and Service Co., Ltd.

D: Baoshan Great Wall Motor 4S store;

E: Baoshan Rongyitong Automobile Sales Co., Ltd. (Chevrolet 4S shop).

In order to further demonstrate the superiority of the invention, the internal structure of the statistical unit 12 in another embodiment of the system for determining the validity of POI information based on the address data in the network of the present invention is further disclosed as follows, to reflect the realization based on the statistical unit 12 Details of another embodiment. With reference to Fig. 2, statistical unit 12 further comprises POI information source acquisition module 121, POI information source reliability judgment module 122 and statistics module 123:

The POI information source acquisition module 121 is configured to acquire the source of the POI information;

The POI information source reliability judging module 122 is used to judge whether the source is a reliable source;

The statistical module 123 is configured to count the occurrence times of the POI information in the address data in the network if the source is a reliable source; otherwise, do not count.

In this embodiment, among the POI names of the same type, selecting the best POI name is based on "voting" on the Internet. Reliability, the name with the highest frequency on the Internet and the most credible source is the best name to be selected. for example:

There is only one name in category A, and this is the best one.

There are two names in category B, among which "Yunnan Province Lancangjiang Beer Group Baoshan Co., Ltd." appears most frequently and is regarded as the best name.

There are two names in category C, among which "Baoshan Mingzhi Automobile Sales and Service Co., Ltd." appears most frequently and is regarded as the best name.

Classes D and E also have only one name, similar to A.

In order to further demonstrate the superiority of the invention, the internal structure of the POI information determination unit 13 in another embodiment of the system for determining the validity of POI information based on the address data in the network of the present invention is further disclosed as follows, to reflect the determination based on POI information Details of another embodiment implemented by unit 13. With reference to Fig. 3, POI information determination unit 13 further comprises judgment subunit 131 and information point information determination subunit 132:

The judging subunit 131 is configured to judge whether the number of occurrences of the POI information in the address data in the network is higher than a predetermined threshold;

The information point information determination subunit 132 is configured to determine that the acquired POI information is valid if the determination subunit determines yes.

In the embodiment of the present invention, the higher the frequency of POI information appearing on the Internet and the more credible the source is, the more credible the POI information is. The final selected best POI name is filtered according to its frequency of appearance on the Internet and its source, and those above a certain threshold are the credible POI information that is finally mined.

In the embodiment of the present invention, the reliable source is a source with predetermined credibility. Wherein, the source is a website or a web page.

In the embodiment of the present invention, the website or webpage of the source of predetermined credibility includes, but is not limited to, such as Sina, Fenghuang.com and other large websites, websites that have passed official certification, websites with relatively high visit frequency and large data traffic, and websites that do not carry malicious Links, viral links, sites with high customer satisfaction, etc.

In the embodiment of the present invention, the credibility is quantifiable, and the credibility of each website or web page can be quantified according to the user's visit times and customer evaluation. Moreover, the credibility of each website or webpage changes dynamically. If the current website has viruses, fraudulent advertisements, or is used by other malicious and fraudulent websites, its credibility will decrease accordingly. The present invention quantifies the credibility of the website and dynamic adjustment to further ensure the reliability and effectiveness of the acquired POI information.

In this embodiment, the address data in the network is used to obtain a plurality of related POI information corresponding to the same POI name, and the effective POI information corresponding to the same POI name is determined according to the number of occurrences of the POI information in the address data in the network, so that the user Can quickly and accurately search for one or more POI names corresponding to the POI address of the same latitude and longitude, and then use the online voting mechanism to filter one or more POI names according to the source of information and the frequency of their appearance on the Internet. A POI name with high reliability is used as the POI name corresponding to the current POI address to improve the validity of POI information.

Fig. 4 schematically shows a flowchart of a method for determining validity of POI information based on address data in a network according to an embodiment of the present invention.

With reference to Fig. 4, the method for determining the validity of POI information based on the address data in the network of the embodiment of the present invention comprises the following steps:

S11. Using address data in the network to obtain multiple related POI information corresponding to the same POI name;

S12. Count the number of occurrences of the POI information in the address data in the network;

S13. Determine valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network.

In the embodiment of the present invention, the plurality of related POI information is information corresponding to at least one preset attribute of the POI. Wherein, the preset attribute is latitude and longitude, address, building name or included unit name.

In the embodiment of the present invention, the address data is captured from the network data based on the search engine, and the address data includes the name field and address information, and the map address data mined from the Internet based on the search engine, such as name: Evergrande Real Estate Group Kunming Company; address: 14th Floor, Office Building, Building A, Beichen Fortune Center, Panlong District, Kunming City, where "Evergrande Real Estate Group Kunming Company" is the name of the POI, and "14th Floor, Office Building A, Beichen Fortune Center, Panlong District, Kunming City" is the address of the POI , The longitude and latitude information of the address can be obtained by analyzing the longitude and latitude of the address. For example, the longitude and latitude of the address "14th Floor, Office Building, Building A, Beichen Fortune Center, Panlong District, Kunming City" is: East Longitude: 102.733445 North Latitude: 25.08108. In addition, it is necessary to count the number of times POI information appears on the Internet and the source of the record.

However, in the POI data obtained from different source websites in the same geographical location (same latitude and longitude), there may be duplicate data, that is, there may be multiple POI names at the same address (latitude and longitude), for example, there are multiple companies at the same latitude and longitude , the actual POI longitude and latitude are the same, but the POI name and POI address are described in different ways; it can also be seen that the same POI name may have many different sayings, such as "Baoshan Mingzhi Automobile Sales Co., Ltd." and "Baoshan Mingzhi Automobile Sales and Service Co., Ltd.", the repetitive POI data makes it impossible for users to quickly and accurately search for the POI name corresponding to the POI address of the same POI geographic location (latitude and longitude).

In this regard, in the embodiment of the present invention, the name of the POI information in the excavated address data is cut into words, and the number of occurrences of each word after the word cut is counted, the least frequency of occurrence in the same POI name means the largest amount of information contained, and The word that is not a place name is recorded as the keyword of the POI name.

In order to further demonstrate the superiority of the invention, the subdivision steps of step S12 in the method for determining the validity of POI information based on the address data in the network of the present invention are further disclosed as follows to embody another embodiment implemented according to this step. Referring to Fig. 5, the subdivision steps of this step include:

S121. Obtain the source of the POI information;

S122. Determine whether the source is a reliable source, and if yes, execute step S123;

S123. When the source is a reliable source, count the number of occurrences of the POI information in the address data in the network; otherwise, do not count.

In this embodiment, among the POI names of the same type, selecting the best POI name is based on "voting" on the Internet. Reliability, the name with the highest frequency on the Internet and the most credible source is the best name to be selected.

In order to further demonstrate the superiority of the invention, the subdivision steps of step S13 in the method for determining the validity of POI information based on the address data in the network of the present invention are further disclosed as follows to embody another embodiment implemented according to this step. Referring to Figure 6, the subdivision steps of this step include:

S131. Judging whether the number of occurrences of the POI information in the address data in the network is higher than a predetermined threshold; if yes, execute step S132,

S132. Determine that the POI information is valid.

In the embodiment of the present invention, the higher the frequency of POI information appearing on the Internet and the more credible the source is, the more credible the POI information is. The final selected best POI name is filtered according to its frequency of appearance on the Internet and its source, and those above a certain threshold are the credible POI information that is finally mined.

In the embodiment of the present invention, the reliable source is a source with predetermined credibility. Wherein, the source is a website or a webpage.

In the embodiment of the present invention, the website or webpage of the source of predetermined credibility includes, but is not limited to, such as Sina, Fenghuang.com and other large websites, websites that have passed official certification, websites with relatively high visit frequency and large data traffic, and websites that do not carry malicious Links, viral links, sites with high customer satisfaction, etc.

In the embodiment of the present invention, the credibility is quantifiable, and the credibility of each website or web page can be quantified according to the user's visit times and customer evaluation. Moreover, the credibility of each website or webpage changes dynamically. If the current website has viruses, fraudulent advertisements, or is used by other malicious and fraudulent websites, its credibility will decrease accordingly. The present invention quantifies the credibility of the website and dynamic adjustment to further ensure the reliability and effectiveness of the acquired POI information.

By adopting the method for determining the validity of POI information based on the address data in the network provided by the embodiment of the present invention, the keywords of the POI name are mined according to the frequency of the words after the word segmentation, and the keywords are used to cluster, and different sayings Group the same POI name into one class, solve the problem of multiple POI names corresponding to the same latitude and longitude, use the Internet "voting" mechanism to select the best POI name, and use the "voting" mechanism on the Internet to select credible POI information .

To sum up, the present invention utilizes address data in the network to obtain a plurality of related POI information corresponding to the same POI name, and determines effective POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network , so that users can quickly and accurately search for one or more POI names corresponding to POI addresses of the same latitude and longitude, and then use the network voting mechanism to select one or more POI names according to the source of information and the frequency of their appearance on the Internet Filter and select the POI name with high reliability as the POI name corresponding to the current POI address, so as to improve the validity of POI information.

It should be noted that the algorithms and formulas presented herein are not inherently related to any particular computer, virtual system, or other device. Various general systems can also be used with the examples based here. The structure required to construct such a system is apparent from the above description. Furthermore, the present invention is not specific to any particular programming language. It should be understood that various programming languages can be used to implement the content of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline the present invention and to facilitate an understanding of one or more of its various aspects, various features of the invention are sometimes grouped together into a single embodiment , figure, or description of it. This disclosed method and apparatus, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all functions of some or all components in the website security detection device according to the embodiment of the present invention. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

The above descriptions are only part of the embodiments of the present invention. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principles of the present invention. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A system for determining the validity of POI information based on address data in the network, the system comprising: A POI information obtaining unit is used to obtain a plurality of related POI information corresponding to the same POI name based on the address data in the network based on the search engine; a statistical unit, configured to count the number of occurrences of the POI information in the address data in the network; A POI information determining unit, configured to determine valid POI information corresponding to the same POI name according to the number of occurrences of the POI information in the address data in the network. 2. The system according to claim 1, wherein the plurality of relevant POI information is information corresponding to at least one preset attribute of POIs. 3. The system according to any one of claims 1-2, wherein the preset attribute is latitude and longitude, address, building name or the name of the included unit. 4. A method for determining the validity of POI information based on address data in a network, the method comprising: Use the address data in the network to obtain multiple related POI information corresponding to the same POI name; counting the number of occurrences of the POI information in the address data in the network; Valid POI information corresponding to the same POI name is determined according to the number of occurrences of the POI information in address data in the network. 5. The method according to claim 4, wherein the plurality of related POI information is information corresponding to at least one preset attribute of POIs. 6. The method according to any one of claims 4-5, wherein the preset attribute is latitude and longitude, address, building name or name of the included unit. 7. The method according to any one of claims 4-6, said step: counting the number of occurrences of said POI information in the address data in said network, further comprising: The source from which the POI information was obtained; Judging whether the source is a reliable source, if so, counting the number of occurrences of the POI information in the address data in the network, otherwise not counting. 8. The method according to any one of claims 4-7, said step: determining valid POI information corresponding to said same POI name according to the number of occurrences of said POI information in address data in said network, further include: judging whether the number of occurrences of the POI information in the address data in the network is higher than a predetermined threshold; If yes, it is determined that the POI information is valid. 9. The method of claims 4-8, the reliable source being a source with a predetermined degree of trustworthiness. 10. The method according to claims 4-9, wherein the source is a website or a webpage.